A about one week ago, my KM R5.5 box exhibited some freezing issues. Basically, while watching a recorded show, the playback more or less ground to a halt over about 5 sec finally freezing on a frame, then dropping down to the UI. It didn't respond to the remote, nor to input of the keyboard. I rebooted it, and it seemed fine. No errors reported in fsck or by running smartmontools on the HDD.
It has since done the same thing twice now. I can ssh into the box, but it literally takes 3-4 min for me to get authenticated (it's THAT slow.) When I finally do get into the box, and run htop. Here is the output.
It looks like either 'hald-addon-storage', 'rrd_MBtemp.pl', or 'mysql' is to blame judging by the CPU usage. Before you point to rrd as the culprit, it has been running on this box literally for the past 5 years with no problems
I was able to kill PID 3404 (# kill 3404) and now the box is fine without a reboot. Is there a log file I can post that will be diagnostic to track down why, all of a sudden, this is causing issues? I know via google that 'hald-addon-storage' is part of HAL and probably required.
EDIT - I have noticed that the DVDROM (empty) will every now and then make an odd 'click' noise. I dunno if it's going bad or what. I just swapped it out for an other one and will see if this makes a difference.
Thoughts from the community are welcomed.